ABS材料人工加速老化与户外自然老化的相关性-.pdf

第4卷,第11期
工.程塑料应用
Vol 44. No11
2016年11月
ENGINEERING PLASTICS APPLICATION
85
NoV.2016
doi:10.3969/issn,1001-3539.2016.11.019
ABS材料人工加速老化与户外自然老化的相关性
王玉海,石光,杨丽庭
(华南师范大学化学与环境学院,州51000
摘要:通过红外光谱、色差和力学性能等研究了丙烯ー丁二一苯乙烯塑料(ABS)在人エ加速老化试验(UVA,
UVB和氩灯)及户外自然老化试验过程中老化行为的相关性。红外分析结果表明,不同ABS材料在人工加速老化
和自然老化过程中遵循相同的光氧老化动力学,但不同光源对ABS材料的加速老化作用有明显差别;色差分析结果
表明,人工加速老化试验对色差变化的加速倍率由大到小顺序为:UVB>UVA>氙灯。通过分析ABS材料的色差及
カ学性能在人工加速老化与户外自然老化过程中变化的相关性,拟合了人エ加速老化与户外自然老化的时间换算方
程
关键词:丙烯腈ー丁二烯一苯乙烯塑料;人エ加速老化试验;自然老化试验;相关性
中图分类号:TQ325文献标识码:A文章编号:1001-3539(2016)11-0085-07
Relationship Between Artificial Accelerated Weathering and Outdoor Natural Weathering for ABS Resin
Wang Yuhai. Shi Gu
Yang Litir
(School of Chemistry and Environment, South China Normal University, Guanghou 510006, China)
Abstract: The relationship between the aging behavior of acrylonitrile-butadiene-styrene plastics(ABS) resins in different
artificial accelerated weathering tests(UVA, UVB and xenon and that in outdoor natural weathering test was investigated b
FT-R, color aberration and mcchanical performance mcasurcments. FT-IR results indicated that the photo-oxidative degradation
mcchanism of ABS in artificial accclcratcd weathering tests was the samc as that in outdoor natural weathering tcst. Howevcr
different accelerated weathering test had obvious effect on the accelerated degradation rate of ABS resins. The order of accelerated
rate of color aberration by accelerated weathering test was: UVB>UVA >xenon. The relationship between artificial accelerated
weathering tcsts and outdoor natural weathering test was cstablishcd on thc basis of data obtaincd by color aberration and mechanica
propcrtics during aging. Finally, thc convcrsion cquation o! time for artilicial accclcratcd weathering test and outdoor natural
weathering test was established
Keywords: acrylonitrile-butadiene-styrene plastics artificial accelerated weathering; outdoor natural weathering
rclationship
丙烯腊ー丁二烯一苯乙烯塑料(ABS)具有优利用人工加速老化试验在较短的时间内预测ABS
异的综合性能,广泛应用于电子、汽和建筑等领材料在自然环境中的耐候性和使用寿命,成为科研、
域,特别在白色家电领域,为冰箱、空调和洗衣机等成生产和使用单位共同关心的问题,但相关研究不
家电外观部件最主要的材料之一。由于ABS的橡多。
胶相中含有双键,在光、热、氧等环境因素的作用下
笔者利用三种人工加速老化试验(UVA,UVB
容易发生老化,出现发黄和力学性能劣化等现象,影和氙灯)及户外自然老化试验对几种ABS材料的
响其外观和使用到。因此,对ABS材料在不同环老化行为进行研究,通过对老化过程中ABS材料的
境下老化行为的研究备受关注,试验方法包括人工红外光谱、色差和力学性能等分析,研究ABS在不
加速老化试验和户外自然老化试验。与室内人
工加速老化试验相比,户外自然老化试验更能真实
*广东省省级科技计划项目(2013309200025,20131309060002
2013B021300019)
反映特定气候环境对材料的影响,但户外自然老化
联系人:王玉海,讲帅,主要从事聚合物老化及功能聚合物复合
试验周期较长。因此,通过探讨ABS材料在人工加材料的研究
速老化与户外自然老化过程中性能变化的相关性
收稿目期:2016-08-20